Using Datasource with Toplink

Question

Hi,
I am using toplink 10.1.3 .We are using the datasource to connect to weblogic connection pool.
My session.xml is like this:
- <login xsi:type="database-login">
<platform-class>oracle.toplink.platform.database.oracle.Oracle10Platform</platform-class>
<user-name />
<datasource>jdbc/ds</datasource>
</login>
In the java DAO part,I need a physical database connection to get the ArrayDescriptor.The part of java code is below
java.sql.Connection dbconnection=null;
DatabaseLogin login = serverSession.getLogin();
dbconnection=(java.sql.Connection)login.connectToDatasource(null);
Questions:
1.Is the above correct way to get the Physical JDBC connection from a weblogic connection pool(configured using datasource).
2.How will the Connection released to the pool?Should i use dbconnection.close() or clientSession.release().
Thanks

Answer 1

Thanks doug for your reply.
I am using datasource to connect to the weblogic 9.2 connection pool.
My specific use case is this.
I am executing a Stored procedure which will takes a Oracle user defined data type as an Input paramater.
some steps we use in the java code for the above use case.
--Getting the  toplink session
ServerSession serverSession = TopLinkGenericDAO.getSession();
clientSession = serverSession.acquireClientSession();
--For getting the oracle user defined array
java.sql.Connection dbconnection=null;
DatabaseLogin login = serverSession.getLogin();
dbconnection=(java.sql.Connection)login.connectToDatasource(null);
oracle.sql.ArrayDescriptor descriptor = new oracle.sql.ArrayDescriptor(
"STRING_ARRAY", dbconnection);
oracle.sql.ARRAY arr_ORCL = new oracle.sql.ARRAY(descriptor,
dbconnection, aIncl_Vin);
--for executing stored procedure
StoredProcedureCall call = new StoredProcedureCall();
DataReadQuery dbquery = new DataReadQuery();
call.setProcedureName(CVeITDAOConstants.INSERT_PING);
call.addNamedArgumentValue("para1", arr_ORCL );
dbquery.setCall(call);
--release connection in the finally block
finally
clientSession.release();
dbconnection.close();
The above code fails when we execute it for 150 concurrent connection(using JMeter) with connection fail exception.
Please let me know how do i release the physical jdbc connection(dbconnection) in the finally block.
do we need to give dbconnection.close() or just by giving clientSession.release() will also release the jdbc connection.
Thanks.